THE world's best photographers are submitting their work to the National Geographic Travel Photographer of the Year Contest, putting the year's best nature photography on display.
The competition consists of three categories: Nature, Cities, and People and the grand-prize winner will be awarded $13,200.
National Geographic has been kind enough to share the images - which are available for download on the competition's website - before entries close on May 31.
We have collected some of our favourites pictures from the nature category, which was packed with out-of-this-world wildlife shots. In most cases, the artist has included a brief story about the moment they took the photograph and what it meant to them.
For photographer Niklas Weber, he recounted a mixture of excitement and nervousness when he happened upon a group of crocodiles along the Rio Tarcoles in Costa Rica and whipped out his drone.
"My heart was beating like crazy because I was incredibly excited, on the one hand I was a bit scared for the drone, on the other hand I was so happy about the unique moment," he said.
Another entrant described stumbling across a lone female polar bear having a quiet moment in northern Manitoba who "looked more slumbering house cat than meat-eating predator".
A pair of fighting kangaroos snapped fighting it out in the rain at Mount Kosciuszko by French photographer Augustin Leparmentier has also featured in the competition.